<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let name = prompt('输入姓名')
        let age = prompt('输入年龄')
        document.write(`大家好，我叫${name},今年${age}岁了`)
    </script>
</body>

</html>